Connector which can be stably placed on a circuit board

Patent metadata

Field	Value
Publication number	US-10535929-B2
Application number	US-201815867952-A
Country	US
Kind code	B2
Filing date	Jan 11, 2018
Priority date	Aug 28, 2017
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

A connector includes: an insulating body having a bottom surface facing a circuit board; and multiple first terminals and multiple second terminals. Each of the first and second terminals has a fixing portion fixed to the insulating body and a soldering portion bending and extending from the corresponding fixing portion and exposed out of the bottom surface of the insulating body. The first and second soldering portions are soldered to the circuit board in a surface mounting manner respectively, and are arranged in four rows in a transverse direction. The first soldering portions are distributed in two outer rows. The second soldering portions are distributed in two inner rows. A bottom surface of each first soldering portion has a lowest point. The lowest points of the first soldering portions in the two outer rows define a plane, and the second soldering portions are located above the plane.

First claim

What is claimed is:

1. A connector, configured to be mounted on a circuit board, comprising:
an insulating body having a bottom surface facing the circuit board; and
a plurality of first terminals and a plurality of second terminals, each of the first terminals having a first fixing portion fixed to the insulating body and a first soldering portion bending and extending from the first fixing portion and exposed out of the bottom surface of the insulating body, each of the second terminals having a second fixing portion fixed to the insulating body and a second soldering portion bending and extending from the second fixing portion and exposed out of the bottom surface of the insulating body, and the first soldering portion and the second soldering portion being soldered to the circuit board in a surface mounting manner respectively, wherein the first soldering portions of the first terminals and the second soldering portions of the second terminals are arranged in four rows in a transverse direction, the first soldering portions are distributed in two outer rows, the second soldering portions are distributed in two inner rows, a bottom surface of each of the first soldering portions has a lowest point, the lowest points of the first soldering portions in the two outer rows define a plane, and the second soldering portions are located above the plane.

2. The connector of claim 1 , wherein the first soldering portions and the second soldering portions are provided to be inclined to the plane.

3. The connector of claim 2 , wherein the first soldering portions in the two outer rows extend away from each other, and the second soldering portions in the two inner rows extend toward each other.

4. The connector of claim 3 , wherein the first soldering portion and the second soldering portion adjacent in the transverse direction are located on a same inclined plane.

5. The connector of claim 2 , wherein the insulating body has two outer wall surfaces provided opposite to each other in the transverse direction, each of the two outer wall surfaces is concavely provided with a notch, the notches penetrate downward through the bottom surface of the insulating body, and the lowest points and the notches are correspondingly arranged vertically.

6. The connector of claim 2 , wherein an upper surface of the circuit board is provided with a plurality of soft solders having an equal thickness and correspondingly conductively connected with the first soldering portions and the second soldering portions, and before the connector is soldered to the circuit board, a bottom surface of each of the second soldering portions has a highest point, and a height difference between the highest point and the lowest point is smaller than the thickness of the soft solders.

7. The connector of claim 6 , wherein the height difference between the highest point and the lowest point is smaller than or equal to 0.1 mm.

8. The connector of claim 1 , wherein an upper surface of the circuit board is provided with a plurality of first soft solders and a plurality of second soft solders, the first soft solders are conductively connected with the first soldering portions, the second soft solders are conductively connected with the second soldering portions, and a thickness of the second soft solders is greater than a thickness of the first soft solders.

9. The connector of claim 1 , wherein when the connector is mounted on the circuit board, the first soldering portions elastically abut the circuit board.

10. The connector of claim 1 , wherein the insulating body has a plurality of overpressure protruding blocks formed by protruding downward from the bottom surface thereof, and each of the first soldering portions is at least partially lower than a bottom surface of each of the overpressure protruding blocks.

11. The connector of claim 1 , wherein:
the insulating body has a slot extending along a longitudinal direction perpendicular to the transverse direction;
a row of the first soldering portions and a row of the second soldering portions are distributed on two opposite sides of the slot respectively;
the first terminals and the second terminals are arranged on the two opposite sides of the slot respectively; and
each of the first terminals has a first contact portion provided at an upper end of the first fixing portion, each of the second terminals has a second contact portion provided at an upper end of the second fixing portion, and the first contact portion and the second contact portion protrude into the slot.

12. The connector of claim 11 , wherein the first soldering portion extends downward obliquely from a lower end of the first fixing portion toward a direction away from the slot, and the second soldering portion extends downward obliquely from a lower end of the second fixing portion toward the slot.

13. The connector of claim 11 , wherein the first terminals and the second terminals on a same side of the slot are staggered in the longitudinal direction.

14. The connector of claim 11 , wherein a first gap is provided between the first contact portions on the two opposite sides of the slot in the transverse direction, a second gap is provided between the second soldering portions on the two opposite sides of the slot in the transverse direction, and the first gap is smaller than the second gap.

15. The connector of claim 11 , wherein the first fixing portions and the second fixing portions on a same side of the slot are arranged in a row along the longitudinal direction.

16. The connector of claim 11 , wherein the circuit board is provided with a plurality of first conductive pads correspondingly and electrically connected to the first soldering portions, each of the first conductive pads has an outer boundary line and an inner boundary line provided to be closer to the slot than the outer boundary line in the transverse direction, and an inner side surface of the corresponding first fixing portion facing the slot is closer to the slot than the inner boundary line.

17. The connector of claim 11 , wherein the insulating body has a base and a mounting portion provided on at least one end of the base, the slot is provided on the base and configured for inserting an electronic card, the mounting portion is provided with an accommodating groove for accommodating an ejector, the ejector is provided with a latch portion configured to latch the electronic card and an ejecting portion configured to release the electronic card, the mounting portion has a stopping portion located at an upper end thereof and configured to limit the ejector from excessively rotating toward the slot, and a width of the stopping portion in the transverse direction is smaller than a width of the base in the transverse direction.

18. The connector of claim 17 , wherein:
two buckling portions are provided on two opposite sides of the stopping portion;
the ejector is concavely provided with an opening from one side surface thereof;
the ejector is provided with two fastening portions on two opposite sides of the opening, and the fastening portions are hidden in the opening; and
when the ejector latches the electronic card, the stopping portion is partially accommodated in the opening, and each of the fastening portions is buckled to the corresponding buckling portions.

Assignees

• Lotes Co Ltd

Inventors

• Ju Ted
• Cai You Hua

Classifications

• H01R12/721

  cooperating directly with the edge of the rigid printed circuits · CPC title

• H01R13/46

  Bases; Cases · CPC title

• H01R12/716

  Coupling device provided on the PCB · CPC title

• H01R12/737

  Printed circuits being substantially perpendicular to each other (for printed connections H05K3/366) · CPC title

• H01R12/57 Primary

  surface mounting terminals · CPC title